package io_homework;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;


public class Copy1 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("homepage-popup-adv_6.jpg");
        FileOutputStream fos = new FileOutputStream("homepage-popup-adv_6_copy2.jpg");
        long start = System.currentTimeMillis();
        int d;
        while ((d= fis.read())!=-1){
            fos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println((end-start)+"ms复制完成!");
        fis.close();
        fos.close();
    }
}
